Inlet Air Temperature Sensor
NOTE:
For circuit identification and wiring diagram, see WIRING DIAGRAMS
article. After each repair procedure has been completed, reconnect all components. Perform POWERTRAIN VERIFICATION TEST VER-2 under VERIFICATION TESTS to ensure system is functioning properly.
NOTE:
When performing this test, DO NOT allow more than 5 minutes between measuring temperature of Inlet Air Temperature (IAT) sensor with scan tool and measuring the air temperature inside of intake manifold with temperature probe.
Turn ignition on. Using scan tool, read and record IAT sensor value. Remove IAT sensor. IAT sensor is located on side of throttle body and has a Black 2-pin connector with Dark Blue/Light Green and Dark Blue/Dark Green wires. See Fig 1 and Fig 2 . Using a thermometer, read temperature inside IAT sensor opening. If IAT sensor value is within 10 degrees of thermometer reading, reinstall IAT sensor. IAT sensor is operating properly. Test is complete. If IAT sensor value is not within 10 degrees of thermometer reading, replace IAT sensor.